Hobble-arch for cultivators.



R. P. RUTLEDGE, R. G. BOLAND & (I. A. DEVAULT.

HOBBLE ARCH FOB. GULTIVATORS.

Patented Apr. 28, 1914.

APPLICATION FILED SEPT. 25, 1912.

COLUMBIA PLANOGRAFH cu. WASHINGTON. D. c.

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ROBERT P. RUTLEDGE, EANDSOME G. BOLAND, AND JOHN A. DEVAULT, 0FSGRANTON, TEXA$.

HOBBLE-ARCH FOR CULTIVATOB-S.

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Specification of Letters Patent.

Patented Apr. 2S, 1914.

Application filed September 25, 1912. Serial No. 722,355.

To all whom it may concern Be it known that we, Bonner P. Rurnnnen,RANDsoMn G. BOLAND, and JOHN A. DE- VAULT, citizens of the UnitedStates, residing at Scranton, in the county of Eastland and State ofTexas, have invented certain new and useful Improvements in Hobble-Arches for Cultivators, of which the following is a specification.

This invention relates to cultivators and has as its object to provide anovel hobble arch for riding cultivators, so constructed that it may bereadily operated to laterally adjust the shovel beams of the cultivator.

It is customary to adjust the legs of a hobble arch through the mediumof a hand wheel mounted upon a threaded shaft but such adjusting meansrequires considerable time for its operation and is liable to get out oforder chiefly through stripping of the threads upon the shaft.

The present invention therefore has for its object to provide anextremely simple means for adjusting the legs of a hobble arch whichadjusting means may be readily and quickly operated to secure thedesired adjustment.

In the accompanying drawings: Figure 1 is a side elevation of theinvention applied to a cultivator of a well known type, those elementsof the cultivator which are not essential to an understanding of thepresent invention being omitted for the sake of clearness; Fig. 2 is aperspective view of the hobble arch and the adjusting means therefordetached from the cultivator; Fig. 3 is a detail sectional view throughthe pivot for the legs of the hobble arch.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

In the drawings, the frame of the cultivator is indicated in general bythe reference letter F, the seat frame being indicated by the letter Sand the seat by s. The shovel beams of the cultivator are indicated bythe numeral 1 and are of the ordinary type, they being pivoted at theirforward ends as at 2 to the frame F and being adapted to be swunglaterally toward and away from each other in order to secure the desiredadjustment. These beams 1 support the usual shovel standards 3.

The hobble arch embodying the present invention includes, as usual, apair of crossed pivoted legs 4:, the pivot for the legs being indicatedat 5. At their lower ends the legs t are pivoted as at 6 in brackets 7which are swiveled as at 8 one to each of the beams 1. At this pointitwill be understood that, as in the ordinary hobble arch, the spreadingof the lower portions of the legs 4 of the arch will serve to swing thebeams 1 away from each other and movement of the lower ends of the legstoward each other will serve to correspondingly adust the said beams. Abracket 9 is provided with an attaching ear 10 through which is securedthe pivot bolt 5, the bolt passing through an opening 11 in the said earand being provided with a nut 12 which may be tightened for the purposeof holding the bracket 9 firmly in place. The bracket includes anupstanding arm 13, the purpose of which will be presently explained. Abracket 14- is provided with an attaching ear 15 through an opening 16in which the pivot bolt 5 extends, the bolt passing also through asleeve 17 which fits within openings 18 formed in the intersectingportions of the legs 4: of the arch, it being under stood that by theprovision of this sleeve, the nut 12 may be tightened upon the boltwithout binding the legs and without preventing their free swingingmovement, although the brackets 9 and 14.- will be riglolly held inproper position. The bracket 14 1s formed or provided with an upstandingrack bar 19, the teeth of which are indicated at 20.

The desired adjustment of the legs of the hobble arch is secured by alever 21 pivoted as at 22 at the upper end of the arm 13. This lever isbroadened at a point ad acent its pivoted end and is formed in itsbroadened portion with a slot 23 which receives the rack bar 19. Theusual locking bolt 24: is mounted upon the lever and is held by theusual spring 25 with its end engaging with the teeth 20 of the rack barand a small hand lever 26 is provided upon the lever 21 and is connectedwith the bolt 24- and operable to retract the bolt whereby to permit ofadjustment of the lever. The lever between its slot 23 and its pivot 22is formed with oppositely laterally projecting ears 27, a link 28 havingone end bent at right angles as at 29 and its said end fitted in anopening in one of the ears 27 and its other end bent at right angles asat 80 and fitting in an opening in the upper end of the adjacent one ofthe legs of the hobble arch. It will now be apparent that when the lever21 is swung upwardly upon its pivot, the upward pull exerted upon thelinks 28 will serve to swing the upper ends of the legs 4: toward eachother which will result in a corresponding movement of the lower ends ofthe legs and in an adjustment of the shovel beams 1 toward each other.In order to spread the beams 1 it is only necessary to swing the lever21 downwardly.

From the foregoing, it .will be seen that there is provided an extremelysimple though highly efficient adjusting means for a hobble arch of thetype mentioned and an adjusting means which may be readily and quicklyoperated and which will not be liable to accidentally get out ofadjustment.

Having thus described the invention, what is claimed as new is:

1. The combination with the relatively adjustable beams of a cultivator,of crossed pivot legs connected to and supported by the beams, bracketsarranged in front and in rear of the legs and each having an attachingcar through which passes the pivot for the legs, the said pivotconstituting the support for the brackets, the forwardly extendingbracket having an upwardly extending arm and the rearwardly extendingbracket being provided with an upwardly and forwardly curved rack, alever pivoted at the upper end of the said arm and extending between theupper ends of the legs and having aslot receiving the said rack, thelever between the legs being provided with laterally projecting ears,links pivoted to the ears and to the upper ends of thesaid legs, a pawlslida bly mounted upon the lever and arranged for cooperation with thesaid rack, and means for moving the pawl.

2. The combination with the relatively ad justable beams of acultivator, of crossed legs pivotally connected intermediate theirlength, a pair of substantially L-s'haped brackets, apertured earsformed on the horizontal portions of the brackets and adapted to'receivethe pivots of the legs, the vertical portion of the rearward bracketbeing toothed to serve as a rack-bar an ad ustm 0 7 n lever for thelegs, said lever having its forward terminal pivoted to the vertlcalportion of the forward L-shaped bracket,

a yoke formed integrally with the lever and adapted to receive the rackbar, means carried by the lever and coacting wit-h the rack bar forholding the lever in adjusted position, and a pair of link membersconnecting the upper terminals of the legs to the lever at a pointapproximately midway between the terminal of the lever and the yoke.

The combination with the relatively adj ustable beams of a cultivator,of cross legs pivotally connected intermediate their length, a pair ofL-shaped brackets constituting a pivotal frame for the legs, a leverpivoted to the vertical portion of the forward bracket, links connectingthe lever intermediate its length with the upper terminals of the legs,rack-bar teeth formed in the vertical portion of the rear bracket, and

a spring-pressed locking pawl carried by the lever and engaging with theteeth of the rear bracket for holding the legs in adjusted position.

4;. The combination with the relatively adjustable beams of acultivator, a pair of pivotally connected to one of the brackets andfreely connected intermediate its length to the upper terminals of thelegs, and a spring-pressed looking pawl carried by the lever andengageable with rack-bar teeth formed in the other of said brackets,.whereby the-legs may be held in adjusted position."

' In testimony whereof we affix our signatures in presence of twowitnesses.

ROBERT P. RUTLEDGE. L. 8.] RANDSOME e. BOLAND. a s] JOHN A. DEVAULT.[1,. 3.

Witnesses:

GE. ANDREWS, J R. ANDREWS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D} C.

